Sash-balance



. I I Mr H G. w. FERNALD.

(No Model.)

SASH BALANCE.

No. 565,612. Patented Aug. 11, 1896.

UNITED STATES PATENT OFFICE.

GEORGE IV. FERNALD, OF NEEDHAM, MASSACHUSETTS, ASSIGNOR TO AUSTIN &EDDY, OF BOSTON, MASSACHUSETTS.

SASH-BALANCE.

SPECIFICATION forming part of Letters Patent No. 565,612, dated August11 1896.

Application filed December 7, 1893.

To aZZ whom it may concern:

Be it known that I, GEORGE W. FERNALD, a citizen of the United States,residing at Needham, in the county of Norfolk and Commonwealth ofMassachusetts, have invented a new and useful Improvement inSash-Balances, of which the following is a full specification.

Referring to the accompanying drawings, wherein like letters representlike parts, Figure 1 is a perspective view showing sash con nected tobalance-weight by means of a band provided with clips and a spring-hook.Fig. 2 is a section of clip, omitting the attachingloop. Fig. 3 is aperspective view of a sec tion of clip, omitting the attaching-loop.

My invention relates to the employment of a flat flexible metallic bandfor connecting the sash to the balance-weight; and it consists incertain improvements designed to render the end fastenings of the bandefficient, durable, and easily adjustable.

In the drawings, A represents the flexible band running over a suitablepulley and connecting the sash F and balance-weight G. The ends of theband are connected to the sash and balance-weight by means of the clips13 B, one of which is clamped onto each end of the band by a set-screwI). These clips are preferably made, as shown in Figs. 2 and 3, cast inone piece and having a longitudinal aperture through which the band ispassed. One of the walls of this aperture is plane and is pierced by aset-screw I), while the other walls are laterally corrugated, so thatwhen the band is passed through the aperture it may be pressed into thedepression I) of the corrugation by means of the set-screw b. The ridgesof the corrugation bounding the depression are rounded, in order toprevent cutcan be thus simply and firmly clamped to the end of the bandby tightening the set-screw. The band is connected with the sash as Aslot Serial No. 493,001. (No model.)

the width of the flexible band is cut in the sash, at the end of whichslot is bored a hole II large enough to receive the clip. The portion ofthe sash f is usually left over the slot next the hole in order to holdthe clip and band in place. The band is pushed through the slot and outthrough the hole, a clip 13 is fastened on the end, the band is drawnback, and the clip pushed into the hole.

In connecting the band A to the balanceweight G a clip B is used, whichhas projecting downward from its lower side an eye b formed of the samematerial as the clip and integral with it. A spring-hook O is interposedbetween the clip and the weight. On the lower end of this hook is hungthe weight, while the upper end is hooked through the eye I) of the clipB, which is attached to the end of the band, as hereinbefore described.

The spring or elasticity is given to the hook by giving it a few spiralturns, as shown, be tween the upper and lower ends, and by this means itis possible to avoid shocks which occur when the sash is thrownviolently up or down.

It will be seen that this device is really a spring with a hook on eachend. In addition to the advantages already set forth arising from theuse of this spring, this double hook makes a very neat, efficacious, andquicklyoperated device for attaching the band to the balance-Weight.

I claim- The combination of a sash and its balanceweight, with a fiatmetal band, a clip connecting the band to the sash anda second cliphaving a longitudinal slot or groove through it, one of the Walls ofsaid slot having rounded corrugations and a screw with a rounded end forforcing the band between the corrugations inserted through a lateralopening in the clip which is provided with an eye at its lower end andconnected with the weight with a doubleended spring-hook, substantiallyas described.

In witness whereof I have hereunto set my E. H. GILMAN, GEO. A. HOLMES.

